Changes since previous release:

• fix issue with web seed connections when they close and re-open
• fallocate() not supported is not a fatal error
• fix proxying of IPv6 connections via IPv4 proxy
• treat CGNAT address range as local IPs
• add stricter checking of piece layers when loading torrents
• add stricter checking of v1 and v2 hashes being consistent
• cache failed DNS lookups as well as successful ones
• add an i2p torrent state to control interactions with clear swarms
• fix i2p SAM protocol parsing of quoted messages
• expose i2p peer destination in peer_info
• fix i2p tracker announces
• fix issue with read_piece() stopping torrent on pieces not yet downloaded
• improve handling of allow_i2p_mixed setting to work for magnet links
• fix web seed request for renamed single-file torrents
• fix issue where web seeds could disappear from resume data
• extend save_resume with additional conditional flags
• fix issue with retrying trackers in tiers > 0
• fix last_upload and last_download resume data fields to use posix time